More enhancements on the WebAdmin permissions panel:  - line-up fields in the fieldsets  - another follow-up to r5183, correctly bind permissions labels to their corresponding checkboxes  - other little validation fixes
More enhancements on the WebAdmin permissions panel:
 - line-up fields in the fieldsets
 - another follow-up to r5183, correctly bind permissions labels to their corresponding checkboxes
 - other little validation fixes


git-svn-id: 0d96b0c1a6983ccc08b3732614f4d6bfcf9cbb42@5185 af82e41b-90c4-0310-8c96-b1721e28e2e2

rbaumg/trac,rbaumg/trac,rbaumg/trac,rbaumg/trac